Machine for making casks.



Patented Mar. ll, I902.

2 Sheets- Sheet l.

0 POLAND MACHINE FOR MAKING GASKS.

(Application filed Dec 14, 1899.)

(No Model.)

2 0 B .r a M d e t n 6 t a P l N Anv 0 P 0 Q 3 5 9 6 0 N MACHINE FOR MAKING CASKS (Application filed Dec. 14, 1899.)

2 Sheets-Shaef 2.

(No Model.)

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OTTO POLAND, OF GIEBIOHENSTEIN, NEAR HALLE-ON-THE-SAALE, GERMANY.

MACHINE FOR MAKING CASKS.

SPECIFICATION forming part of Letters Patent No. 695,230, dated March 11, 1902.

Application filed December 14, 1899. Serial no. 740,355- (No model.)

To all whom it may concern:

Be it known that I, 01 1 0 POLAND, master wheelwright, a subject of the King of Prussia, Emperor of Germany, residing it Giebichenstein, near Halle-on-the-Saale, in the Kingdom of Prussia and Empire of Germany, have invented certain new and useful Improvements in Machines for Making Casks with Staves'Shaped in Accordance with the Forms of the Gasks, of which the following is a full, clear, and exact description.

I am aware that machines have already been built adapted to use staves that have been previously shaped for their better adaptation to the form of the completed cask. Such a device, for example, is described in the German Patent No. 70,593, which describes a process whereby the staves after having been out out in the form of segments of cylinders and afterward softened by steam are grouped together by means of fork-shaped rings corresponding to the form of the cask, while the British Patent No. 21,333 of 1893 describes a machine for carrying out that process; also, in the German Patent No. 43,797 an arrangement is'described in which the staves are worked over a form or patternplate by means of oscillating motion of a pressing-piece.

In my invention I employ staves that have been previously tapered at both ends and after steaming, as in the ordinary process, are bent into the form of a cask; but in this latter process, however, I do not use a form or pattern-piece, but certain presser-pieces arranged in a ring around the top of the staves, while the lower ends of said staves are at the same time confined within a hoop.

In the accompanying drawings the novel apparatus is shown in four different figures.

Figure 1 is a longitudinal section of the machine in the position in which the staves have already received the desired form; Fig. 2, a plan view of Fig. 1; Fig. 3, .a partial section showing the machine at the moment when the straight staves are adjusted in the machine for the purpose of being pressed. Fig. 4 is a view showing details of the table on which the staves are adjusted in the machine.

The actual machine consists of a foot-plate a, with vertical side supports b. On these supports a circular ring 0, of round iron or the like, is seated. Suitably-shaped pressing-pieces d are pivoted on the ring in such a manner that the several pressing-pieces radiate inward. On the under surface of the pressing-pieces d guide-pieces e are provided, which are preferably formed of two blocks, over which a piece of flat or hoop iron or the like is laid. In these guide-pieces a circular ring f is seated, also made of round iron. This ring supports stays g, the free ends of which are fixed in a plate h, which may be of circular or similar shape. Through the middle of the plate 7L runs the lifting-rod i of a lifting-jack, carrying a collar n, which is adapted to engage with the plate It as the rod 1' is forced through the latter. The continued motion of the rod 11 will cause the ring fthrough stays g to press against the presser-pieces d, causing them to move in an L upwardly and outwardly direction. On this rod a narrow board 7c is arranged in the manner of a hinge-joint, its purpose being to retain in one plane the ends of the staves placed on the plate It, so that the staves are prevented from moving upward. This board 7t has also another purpose, as hereinafter described.

The action of the machine is as follows: The staves Z which are to be bent are placed with their lower ends on the plate h in a hoop m, the circumference of which corresponds with the lower part of the cask to be constructed. After the plate h has been raised by means of the lifting-rod i, so that the ring f has passed through the ring 0 and is above the same, and the pressing-pieces cl are raised through the medium of the ring f the suitably-shaped staves Z are laid against the pressin g-pieces d and the plate h drawn downward by means of the lifting-rod v1 and the board 7a. This board 70 is so arranged that it will normally lie in a plane parallel to the plate h. The pressing-pieces press the several staves into the desired form,while the board 70, having either end bearing against I two or three staves,will cause said staves to be pressed out and also down at these points at the same timethat the upper ends are pressed in. Now the staves that do not so come into contact with the board it are caused to take the same form as those that do so come in contact with the board by virtue of the arch formed by the lower ends of the stavesz'. 6., each stave hearing against its neighbor, and thus holding it out and down at this point. As the board is presses downwardly against the inclined faces of the staves the plate h is also caused to descend by virtue of the lower ends of the staves resting on same.

The machine is so arranged that the upper ends of the staves after the pressing has been effected remain free so far that a ring or hoop can be pushed over them, which after the pressing-pieces have been released hold the staves together. When the ring has been pushed over, the board 7c is flapped into the vertical position, and after the plate It has been pressed upward again by means of the lifting-rod 't' the cash can be removed from the machine.

Having thus described my invention, the

following is what I claim as new therein and desire to secure by Letters Patent:

1. In a cask-making machine, the combination of a hoop of elliptical, circular or other similar shape, adapted to hold the staves together at one end; presser-pieces adapted to press the free ends of said staves together; a plate, attached to the operating mechanism of said presser-pieces, and supporting said hoop; a rod adapted to operate through the center of said hoop; a brace piece or board secured to said rod, and a pivotal connection between said brace-piece and rod, so constructed and arranged as to allow the said-brace piece or board to normallylie in a plane parallel to the said supporting-plate for'the purposes Set-forth.

2". In a cask-making machine, the combination of a movable base-plate h to support a hoop m, carried by said plate for securely confining the lower ends of the staves which rest on said plate; presser-pieces d adapted to press radially inward against the free ends of the staves; means connected with said baseplate for operating said presser-pieces; an internal brace is adapted to bear outwardly against the inclined inner walls of the opposed staves and means for drawing said brace 7c downward whereby the assembled lower ends of the staves are pressed downward on the baseplate h and the latter is forced down and simultaneous movement communicated therefrom to the presser pieces d, as explained.

3. In a cask-making machine, the combination with the frame of the machine, of a ring of elliptical, circular or other similar shape, to conform to the desired shape of the cask, presser-pieces fulcruming on said ring and adapted to operate in planes radial to said ring, guides on said presser-pieces, a second ring similar in shape to the first-named ring and adapted to engage with said guides, a plate supported from said second ring, a hoop similar in shape to the rings mounted upon said plate and adapted to hold the lower ends of the staves together, a rod adapted to operate through center of said hoop and carrying a stop or collar adapted to engage the under side of the plate and an internal brace piece or board secured to said rod and whose ends are adapted to bear against the inner sides of the staves when the rod is brought to a certain position, for the purposes set forth.

In witness whereof I subscribe my signature in presence of two Witnesses.

OTTO POLAND. Witnesses:

RUDOLPH FRICKE, F. H. E. LEHMANN. 

